.sec {
  height: 100vh;
  font-size: 100px;
  text-align: center;
  color: #fff;
  /* scroll-snap-align: center; */
}

/* 隐藏container的滚动条 */
.container {
  scrollbar-width: none;
  scroll-snap-type: y mandatory;
  overflow-y: scroll;
  height: 100vh;
}

* {
  overflow: auto;

  scrollbar-width: none;
  /* Firefox */
  -ms-overflow-style: none;
  /* IE 10+ */
}

.hide-scrollbar::-webkit-scrollbar {
  display: none;
  /* Chrome、Safari、Edge */
}